have you ever wondered which bone you're sitting on the pelvis is divided into three parts the illium at the top the pubis at the front but the part that we're interested in is the isum at the bottom when you're sitting the femurs rotate forward while the pelvis stays in the same place surrounding the pelvis we also have the glutitis Maximus which attaches to the femur and usually there's also some fat that collects at the bottom of the glutes so when we're sitting this muscle along with the fat
acts as a cushion for the isum
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